var colors = Array('#ff0000', '#00ff00', '#0000ff', '#ffffff');
var tick = 0;

function ToggleDisplay(checked, id)
{
	var ele = document.getElementById(id);

	if(ele != undefined)
	{
		if(checked == true)
			ele.style.display = 'block';
		else
			ele.style.display = 'none';
	}
}

function ToggleDisable(checked, id)
{
	var ele = document.getElementById(id);

	if(ele != undefined)
	{
		if(checked == true)
			ele.disabled = false;
		else
			ele.disabled = true;
	}
}

function ChangeBackground(id, color)
{
	var ele = document.getElementById(id);

	if(ele != undefined)
		ele.style.background = color;
}

function AnimateBorder()
{
	document.getElementById('content').style.borderColor = colors[tick];
	tick++;
	if(tick > 3)
		tick = 0;
}

function BorderTimer()
{
	AnimateBorder();
	setTimeout('BorderTimer()', 500);
}